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I worked hard on the textures, tweaking Jim Charter's StainedStones macro
until it fitted better to the column segments, and hammering out a
believable lichen growth (or so I hope). I took the lichen colors from a
photograph and tried to reproduce their shape with a crackle solid pattern.
On the floor tiles this is just not yet good enough I am afraid. I am
certainly going to randomize the amount of lichen growth on individual
stones in the first place, but I wonder if the growth should not be
restricted more to shadowy areas. This is more difficult to obtain. Maybe
with a X or Z gradient for the columns? But for the tiles, I don't know.
Also, I think the diffuse parameter (now at 0.8) should be lowered as the
lichen seems too bright overall.
Rubble is coming later.
I am sure you have comments to make on this :-)
Thomas
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It has some ugly artifacts, as if you had compressed it with JPEG
multiple times. Could you upload the original PNG, if it's not too big?
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Thomas de Groot nous apporta ses lumieres en ce 2008/02/14 10:41:
> I worked hard on the textures, tweaking Jim Charter's StainedStones macro
> until it fitted better to the column segments, and hammering out a
> believable lichen growth (or so I hope). I took the lichen colors from a
> photograph and tried to reproduce their shape with a crackle solid pattern.
>
> On the floor tiles this is just not yet good enough I am afraid. I am
> certainly going to randomize the amount of lichen growth on individual
> stones in the first place, but I wonder if the growth should not be
> restricted more to shadowy areas. This is more difficult to obtain. Maybe
> with a X or Z gradient for the columns? But for the tiles, I don't know.
>
> Also, I think the diffuse parameter (now at 0.8) should be lowered as the
> lichen seems too bright overall.
>
> Rubble is coming later.
>
> I am sure you have comments to make on this :-)
>
> Thomas
>
>
>
In my experiance, lichen do grow well on sunlit areas. I've seen large patches
on bare rock patches on hill tops, with no trees near enough to give any shadows.
--
Alain
-------------------------------------------------
When we get piled upon one another in large cities, as in Europe, we shall
become as corrupt as Europe.
Thomas Jefferson
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Looks a bit too grainy. What about dropping the granite in the pigment for some
granite in the normal? And what about some slight, reasonably fast radiosity?
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"nemesis" <nam### [at] gmail com> wrote in message
news:web.47b49e054fa69d8166f20de80@news.povray.org...
> Looks a bit too grainy. What about dropping the granite in the pigment
> for some
> granite in the normal? And what about some slight, reasonably fast
> radiosity?
That's the second time someone suggests radiosity for this WIP. I think
it's very clear radiosity is already being used though.
strange
cu!
--
#macro G(b,e)b+(e-b)*C/50#end#macro _(b,e,k,l)#local C=0;#while(C<50)
sphere{G(b,e)+3*z.1pigment{rgb G(k,l)}finish{ambient 1}}#local C=C+1;
#end#end _(y-x,y,x,x+y)_(y,-x-y,x+y,y)_(-x-y,-y,y,y+z)_(-y,y,y+z,x+y)
_(0x+y.5+y/2x)_(0x-y.5+y/2x) // ZK http://www.povplace.com
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Thomas de Groot wrote:
> I worked hard on the textures, tweaking Jim Charter's StainedStones macro
> until it fitted better to the column segments, and hammering out a
> believable lichen growth (or so I hope). I took the lichen colors from a
> photograph and tried to reproduce their shape with a crackle solid pattern.
>
> On the floor tiles this is just not yet good enough I am afraid. I am
> certainly going to randomize the amount of lichen growth on individual
> stones in the first place, but I wonder if the growth should not be
> restricted more to shadowy areas. This is more difficult to obtain. Maybe
> with a X or Z gradient for the columns? But for the tiles, I don't know.
>
> Also, I think the diffuse parameter (now at 0.8) should be lowered as the
> lichen seems too bright overall.
>
Looking better and better. I think it mostly needs more variation
between stones and areas.
Not sure what you mean by 'crackle solid' pattern. Are you using a none
standard form? What this
actually reminds me of is the 'cells' pattern which might be something
worth trying too.
Now you've gotten me googling antique ruins. They really are powerful
images.
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"Nicolas Alvarez" <nic### [at] gmail is the best com> schreef in bericht
news:47b470e2@news.povray.org...
> It has some ugly artifacts, as if you had compressed it with JPEG
> multiple times. Could you upload the original PNG, if it's not too big?
Strange... I see no differences... Here is the png.
Thomas
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Download 'IonianTempleRuins_2_04.png' (512 KB)
Preview of image 'IonianTempleRuins_2_04.png'
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"nemesis" <nam### [at] gmail com> schreef in bericht
news:web.47b49e054fa69d8166f20de80@news.povray.org...
> Looks a bit too grainy. What about dropping the granite in the pigment
> for some
> granite in the normal? And what about some slight, reasonably fast
> radiosity?
>
>
Radiosity is there already!
Granite: depends. Jim's set of macros is highly complex. At this moment I
cannot refer you back to his postings (July 2006) as the POV-Ray ng's appear
to be unstable.
Thomas
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"Alain" <ele### [at] netscape net> schreef in bericht
news:47b48b8e$1@news.povray.org...
>>
> In my experiance, lichen do grow well on sunlit areas. I've seen large
> patches on bare rock patches on hill tops, with no trees near enough to
> give any shadows.
>
Ah! That is good to know. I may be confused with some mosses on tree boles
that have preferential growth on the shade sides. I suddenly was not sure
about lichens. Thanks!
Thomas
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"Zeger Knaepen" <zeg### [at] povplace com> schreef in bericht
news:47b4ad29@news.povray.org...
>
> That's the second time someone suggests radiosity for this WIP. I think
> it's very clear radiosity is already being used though.
> strange
>
well, the radiosity used is mainly default and it may enhance artifacts
here. Maybe that is the reason.
Thomas
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